Shares were boosted after French billionaire Patrick Drahi said he'd be open to buying Cablevision, during an interview in Geneva.
Drahi was at one point interested in buying Time Warner Cable (TWC), according to The Wall Street Journal, but Charter Communications (CHTR - Get Report) scooped up the cable giant for $78.7 billion, back in May.
The Journal said his goal is to bring price bundling for telephone, Internet, cable and mobile service, to the United States.
Last year, Drahi completed a $23 billion acquisition of SFR, which is the second-biggest mobile provider in France.
Drahi is worth an estimated $23.2 billion, according to Forbes, making his fortune off of founding Altice, which went public in January 2014.
FRN Securities holds an outperform rating, and the analysts at Tesley Advisory Group maintain a market perform rating. Morningstar has a hood rating.
Of the analysts who cover the stock, 22.2% maintain buy ratings, 44.4 percent have hold ratings and 33.3 percent maintain sell ratings, according to Bloomberg data.
At $26.61 a share, the stock trades at roughly 38 times greater than its pre-share earnings last year, Bloomberg data revealed.
Cablevision shares are up almost 29% since the start of the year.